Zobrazeno 1 - 10
of 201
pro vyhledávání: '"Igoshev, A. P."'
Autor:
Igoshev, Andrei P., Popov, Sergei B.
Magnetic field evolution of neutron stars is a long-standing debate. The rate of magnetic field decay for isolated, non-accreting neutron stars can be quantified by measuring the negative second derivative of the spin period. Alternatively, this rate
Externí odkaz:
http://arxiv.org/abs/2409.03573
Publikováno v:
Phys. Rev. B 110, 115110 (2024)
The effect of the spin-orbit coupling on the ground state properties of the square-lattice three-band Hubbard model with a single electron per site is studied by a generalized Hartree-Fock approximation. We calculate the full phase diagram and show t
Externí odkaz:
http://arxiv.org/abs/2406.07386
Observations utilizing the ultraviolet capabilities of the Cosmic Origin Spectrograph (COS) onboard the Hubble Space Telescope are of unique value to the astronomy community. Spectroscopy down to 900 A with COS has enabled new science areas. However,
Externí odkaz:
http://arxiv.org/abs/2406.06873
Autor:
Igoshev, Petr A., Nekrasov, Igor A.
A thermodynamic theory based on Landau grand potential expansion for ferromagnetic-paramagnetic phase transitions is developed for an electronic phase-separated state. It is rigorously shown that ferromagnetic phase involved in the phase-separated st
Externí odkaz:
http://arxiv.org/abs/2405.10794
Autor:
Korol, Valeriya, Igoshev, Andrei P., Toonen, Silvia, Karnesis, Nikolaos, Moore, Christopher J., Finch, Eliot, Klein, Antoine
Neutron star-white dwarf (NS+WD) binaries offer a unique opportunity for studying NS-specific phenomena with gravitational waves. In this paper, we employ the binary population synthesis technique to study the Galactic population of NS+WDs with the f
Externí odkaz:
http://arxiv.org/abs/2310.06559
Off-centred dipole configurations have been suggested to explain different phenomena in neutron stars, such as natal kicks, irregularities in polarisation of radio pulsars and properties of X-ray emission from millisecond pulsars. Here for the first
Externí odkaz:
http://arxiv.org/abs/2308.09132
Autor:
Igoshev, P. A., Katanin, A. A.
Publikováno v:
Phys. Rev. B 107, 115105 (2023)
We investigate the possibility of ferromagnetic ordering in the non-degenerate Hubbard model on the face-centered cubic lattice within the functional renormalization group technique using temperature as a scale parameter. We assume the relations betw
Externí odkaz:
http://arxiv.org/abs/2212.04135
Autor:
Mandel, Ilya, Igoshev, Andrei P.
Publikováno v:
ApJ 944, 153 (2023)
The speeds of young isolated pulsars are generally inferred from their observed 2-d velocities on the plane of the sky under the assumption that the unobserved radial velocity is not special, i.e., that the measured 2-d velocity is an isotropic proje
Externí odkaz:
http://arxiv.org/abs/2210.12305
Autor:
Igoshev, Andrei P., Hollerbach, Rainer
We numerically model evolution of magnetic fields inside a neutron star under the influence of ambipolar diffusion in the weak-coupling mode in the one-fluid MHD approximation. Our simulations are three-dimensional and performed in spherical coordina
Externí odkaz:
http://arxiv.org/abs/2210.10869
Type Ia and other peculiar supernovae (SNe) are thought to originate from the thermonuclear explosions of white dwarfs (WDs). Some of the proposed channels involve the ejection of a partly exploded WD (e.g. Iax SN remnant) or the companion of an expl
Externí odkaz:
http://arxiv.org/abs/2209.09915